motivating case study
kernels
GP regression
tuning
Görtler, J., Kehlbeck, R., & Deussen, O. (2019). A visual exploration of Gaussian processes. Distill, 4(4). doi:10.23915/distill.00017
Deisenroth, M., Luo, Y., & van der Wilk, M. (2020). A practical guide to Gaussian processes. https://infallible-thompson-49de36.netlify.app/.
Question: How quickly does a star rotate around its axis? This has to be answered accurately before we can search for exoplanets around the star.
Data: Telescopes make it possible to measure the brightness of a star over time. We can look for periodic patterns in the brightness.
Ideally the brighness would be a perfect sine wave. But brightness changes in more complex ways both on the surface of the star and in the space from the star to the telescope.